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ACPI fixes for 6.10-rc3

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- Fix error handling during EC operation region accesses in the ACPI EC
    driver (Armin Wolf).
 
  - Fix a memory leak in the APEI error injection driver introduced
    during its converion to a platform driver (Dan Williams).
 
  - Fix build failures related to the dev_is_pnp() macro by redefining it
    as a proper function and exporting it to modules as appropriate and
    unexport pnp_bus_type which need not be exported any more (Andy
    Shevchenko).
 
  - Update the ACPI AC driver to use power_supply_changed() to let the
    power supply core handle configuration changes properly (Thomas
    Weißschuh).
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Merge tag 'acpi-6.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix the ACPI EC and AC drivers, the ACPI APEI error injection
  driver and build issues related to the dev_is_pnp() macro referring to
  pnp_bus_type that is not exported to modules.

  Specifics:

   - Fix error handling during EC operation region accesses in the ACPI
     EC driver (Armin Wolf)

   - Fix a memory leak in the APEI error injection driver introduced
     during its converion to a platform driver (Dan Williams)

   - Fix build failures related to the dev_is_pnp() macro by redefining
     it as a proper function and exporting it to modules as appropriate
     and unexport pnp_bus_type which need not be exported any more (Andy
     Shevchenko)

   - Update the ACPI AC driver to use power_supply_changed() to let the
     power supply core handle configuration changes properly (Thomas
     Weißschuh)"

* tag 'acpi-6.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: AC: Properly notify powermanagement core about changes
  PNP: Hide pnp_bus_type from the non-PNP code
  PNP: Make dev_is_pnp() to be a function and export it for modules
  ACPI: EC: Avoid returning AE_OK on errors in address space handler
  ACPI: EC: Abort address space access upon error
  ACPI: APEI: EINJ: Fix einj_dev release leak
This commit is contained in:
Linus Torvalds 2024-06-05 15:19:15 -07:00
commit 553352597d
7 changed files with 21 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/acpi/ac.c
View File

@ -145,7 +145,7 @@ static void acpi_ac_notify(acpi_handle handle, u32 event, void *data)
dev_name(&adev->dev), event,
(u32) ac->state);
acpi_notifier_call_chain(adev, event, (u32) ac->state);
kobject_uevent(&ac->charger->dev.kobj, KOBJ_CHANGE);
power_supply_changed(ac->charger);
}
}
@ -268,7 +268,7 @@ static int acpi_ac_resume(struct device *dev)
if (acpi_ac_get_state(ac))
return 0;
if (old_state != ac->state)
kobject_uevent(&ac->charger->dev.kobj, KOBJ_CHANGE);
power_supply_changed(ac->charger);
return 0;
}

2
drivers/acpi/apei/einj-core.c
View File

@ -909,7 +909,7 @@ static void __exit einj_exit(void)
if (einj_initialized)
platform_driver_unregister(&einj_driver);
platform_device_del(einj_dev);
platform_device_unregister(einj_dev);
}
module_init(einj_init);

9
drivers/acpi/ec.c
View File

@ -1333,10 +1333,13 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
if (ec->busy_polling || bits > 8)
acpi_ec_burst_enable(ec);
for (i = 0; i < bytes; ++i, ++address, ++value)
for (i = 0; i < bytes; ++i, ++address, ++value) {
result = (function == ACPI_READ) ?
acpi_ec_read(ec, address, value) :
acpi_ec_write(ec, address, *value);
if (result < 0)
break;
}
if (ec->busy_polling || bits > 8)
acpi_ec_burst_disable(ec);
@ -1348,8 +1351,10 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
return AE_NOT_FOUND;
case -ETIME:
return AE_TIME;
default:
case 0:
return AE_OK;
default:
return AE_ERROR;
}
}

4
drivers/acpi/sbs.c
View File

@ -610,7 +610,7 @@ static void acpi_sbs_callback(void *context)
if (sbs->charger_exists) {
acpi_ac_get_present(sbs);
if (sbs->charger_present != saved_charger_state)
kobject_uevent(&sbs->charger->dev.kobj, KOBJ_CHANGE);
power_supply_changed(sbs->charger);
}
if (sbs->manager_present) {
@ -622,7 +622,7 @@ static void acpi_sbs_callback(void *context)
acpi_battery_read(bat);
if (saved_battery_state == bat->present)
continue;
kobject_uevent(&bat->bat->dev.kobj, KOBJ_CHANGE);
power_supply_changed(bat->bat);
}
}
}

1
drivers/pnp/base.h
View File

@ -6,6 +6,7 @@
extern struct mutex pnp_lock;
extern const struct attribute_group *pnp_dev_groups[];
extern const struct bus_type pnp_bus_type;
int pnp_register_protocol(struct pnp_protocol *protocol);
void pnp_unregister_protocol(struct pnp_protocol *protocol);

6
drivers/pnp/driver.c
View File

@ -266,6 +266,12 @@ const struct bus_type pnp_bus_type = {
.dev_groups = pnp_dev_groups,
};
bool dev_is_pnp(const struct device *dev)
{
return dev->bus == &pnp_bus_type;
}
EXPORT_SYMBOL_GPL(dev_is_pnp);
int pnp_register_driver(struct pnp_driver *drv)
{
drv->driver.name = drv->name;

6
include/linux/pnp.h
View File

@ -435,8 +435,6 @@ struct pnp_protocol {
#define protocol_for_each_dev(protocol, dev) \
list_for_each_entry(dev, &(protocol)->devices, protocol_list)
extern const struct bus_type pnp_bus_type;
#if defined(CONFIG_PNP)
/* device management */
@ -469,7 +467,7 @@ int compare_pnp_id(struct pnp_id *pos, const char *id);
int pnp_register_driver(struct pnp_driver *drv);
void pnp_unregister_driver(struct pnp_driver *drv);
#define dev_is_pnp(d) ((d)->bus == &pnp_bus_type)
bool dev_is_pnp(const struct device *dev);
#else
@ -502,7 +500,7 @@ static inline int compare_pnp_id(struct pnp_id *pos, const char *id) { return -E
static inline int pnp_register_driver(struct pnp_driver *drv) { return -ENODEV; }
static inline void pnp_unregister_driver(struct pnp_driver *drv) { }
#define dev_is_pnp(d) false
static inline bool dev_is_pnp(const struct device *dev) { return false; }
#endif /* CONFIG_PNP */